private function get_language_from_fallbacks()
 {
     $lang = get_option('wpml_user_email_language');
     if (!$lang) {
         $lang = apply_filters('wpml_default_language', null);
         if ($this->WPML_WP_API->is_front_end()) {
             $lang = apply_filters('wpml_current_language', null);
         }
     }
     return $this->WPML_Language_Code->sanitize($lang);
 }
 public function sanitize($language)
 {
     return $this->WPML_Language_Code->sanitize($language);
 }